/* store-ui.css — modern typography, buttons, pills, cards + Series components.
   Shared by Store, Book pages, Series pages and the Shop. Loaded AFTER style.css / store.css / the shop's inline styles. */
:root{--font-title:'Bricolage Grotesque','Sora',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;--ease-out:cubic-bezier(.2,.8,.2,1)}
body{font-optical-sizing:auto;text-rendering:optimizeLegibility;font-kerning:normal;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
/* browsers render <button>/<select> in Arial unless told to inherit — this is why filter chips looked off */
button,select,input,textarea,optgroup{font-family:inherit}

/* ---------- typography ---------- */
.st-body h3,.pcard h3,.bk-title,.cs-hero h1,.hero-s h1,.st-sec h2,.sr-hero h1,.sr-sec h2,.sr-item b{font-family:var(--font-title);font-weight:650;letter-spacing:-.022em;text-wrap:balance}
.bk-title,.sr-hero h1{font-weight:700;letter-spacing:-.03em;line-height:1.07}
.cs-hero h1,.hero-s h1{font-weight:700;letter-spacing:-.03em}
.st-body h3,.pcard h3{font-size:16px;line-height:1.27}
.bk-sub,.bk-by{font-family:var(--font-body)}
.st-price b,.price,.bk-opt .p,.co-r.tot b,.co-p b,.st-price s,.price s{font-family:var(--font-display);font-variant-numeric:lining-nums tabular-nums;font-weight:700;letter-spacing:-.02em}
.st-by,.pcard .meta{font-size:12.5px;line-height:1.4}
.chip,.st-fm span,.st-kind,.st-off,.off,.bk-chips span{font-family:var(--font-display);font-weight:600;letter-spacing:.005em}
.desc,.bk-desc{font-size:15.5px;line-height:1.72;letter-spacing:-.003em}
.desc p,.bk-desc p{margin:0 0 .9em}

/* ---------- buttons ---------- */
body .btn{border-radius:14px;font-weight:650;letter-spacing:-.01em;position:relative;isolation:isolate;overflow:hidden;
  transition:transform .2s var(--ease-out),box-shadow .2s var(--ease-out),background-position .45s var(--ease-out),border-color .2s,filter .2s}
body .btn-primary{background:linear-gradient(115deg,#7c3aed 0%,#a21caf 48%,#ec4899 100%);background-size:170% 100%;background-position:0 0;color:#fff;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.3),inset 0 -2px 0 rgba(0,0,0,.1),0 12px 24px -12px rgba(124,58,237,.8)}
body .btn-primary::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(105deg,transparent 35%,rgba(255,255,255,.28) 50%,transparent 65%);transform:translateX(-120%);transition:transform .7s var(--ease-out)}
body .btn-primary:hover{background-position:100% 0;transform:translateY(-2px);box-shadow:inset 0 1px 0 rgba(255,255,255,.35),inset 0 -2px 0 rgba(0,0,0,.1),0 18px 30px -12px rgba(124,58,237,.85)}
body .btn-primary:hover::after{transform:translateX(120%)}
body .btn:active{transform:translateY(0) scale(.975);transition-duration:.08s}
body .btn-ghost{background:var(--surface-solid);border:1px solid var(--border-soft);color:var(--text);box-shadow:0 1px 2px rgba(15,23,42,.06)}
body .btn-ghost:hover{border-color:rgba(124,58,237,.4);box-shadow:0 10px 20px -12px rgba(124,58,237,.45);transform:translateY(-1px);background:var(--surface-solid)}
body .btn-outline{border:1.5px solid rgba(124,58,237,.55);background:rgba(124,58,237,.06);color:var(--violet)}
body .btn-outline:hover{background:rgba(124,58,237,.12);transform:translateY(-1px)}
body .btn-sm{border-radius:12px}
body .btn:focus-visible,body .cchip:focus-visible,body .seg button:focus-visible,body .fbtn:focus-visible,.st-tabs a:focus-visible,.cs-chip:focus-visible{outline:0;box-shadow:0 0 0 3px var(--bg),0 0 0 5px rgba(124,58,237,.75)}
body .btn:disabled{filter:saturate(.6)}
.pcard .buy .btn{border-radius:12px;min-height:42px}
.bk-store{overflow:hidden}

/* ---------- filter pills / tabs / segmented ---------- */
body .cchip,body .fbtn,.st-tabs a,.cs-chip,body .lang{font-family:var(--font-display);font-weight:600;font-size:13px;letter-spacing:-.005em;border-radius:999px;border:1px solid var(--border-soft);background:var(--surface-solid);color:inherit;
  transition:transform .2s var(--ease-out),box-shadow .2s,border-color .2s,background .2s,color .2s;box-shadow:0 1px 2px rgba(15,23,42,.05)}
body .cchip:hover,body .fbtn:hover,.st-tabs a:hover,.cs-chip:hover{border-color:rgba(124,58,237,.4);transform:translateY(-1px);box-shadow:0 8px 16px -10px rgba(124,58,237,.5)}
body .cchip.on,.st-tabs a.on,.cs-chip.on,body .fbtn.has{background:linear-gradient(115deg,#7c3aed,#c026d3 62%,#ec4899);color:#fff;border-color:transparent;box-shadow:0 10px 20px -12px rgba(124,58,237,.9)}
.st-tabs a small{opacity:.8;font-weight:600}
body .seg{background:var(--surface);padding:4px;border-radius:16px;border:1px solid var(--border-soft);gap:4px}
body .seg button{font-family:var(--font-display);font-weight:600;font-size:13.5px;border:0;background:transparent;border-radius:12px;padding:10px 8px;transition:background .2s,color .2s,box-shadow .2s;color:var(--text-dim)}
body .seg button.on{background:linear-gradient(115deg,#7c3aed,#c026d3 62%,#ec4899);color:#fff;box-shadow:0 8px 16px -10px rgba(124,58,237,.9)}
body .filters input,body .filters select,body .fbar input,body .cs-filters input,body .cs-filters select{border-radius:14px;border:1px solid var(--border-soft);transition:border-color .2s,box-shadow .2s}
body .filters input:focus,body .fbar input:focus,body .cs-filters input:focus,body .filters select:focus{outline:0;border-color:var(--violet);box-shadow:0 0 0 4px rgba(124,58,237,.14)}
body .cart-btn,.st-cart{border-radius:14px;transition:transform .2s var(--ease-out),box-shadow .2s,border-color .2s}
body .cart-btn:hover,.st-cart:hover{transform:translateY(-1px);border-color:rgba(124,58,237,.4);box-shadow:0 8px 16px -10px rgba(124,58,237,.5)}

/* ---------- cards ---------- */
body .pcard,.st-card{border-radius:20px;border:1px solid var(--border-soft);transition:transform .28s var(--ease-out),box-shadow .28s var(--ease-out),border-color .28s}
body .pcard:hover,.st-card:hover{transform:translateY(-4px);box-shadow:0 26px 44px -26px rgba(124,58,237,.55);border-color:rgba(124,58,237,.28)}
.st-thumb img,.pcard .th,.sr-item .im img{transition:transform .6s var(--ease-out)}
.st-card:hover .st-thumb img,.pcard:hover .th{transform:scale(1.045)}
.st-thumb,.pcard{overflow:hidden}
.st-kind,.st-off,.off{backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);font-size:11px;padding:4px 10px;border-radius:999px}
.off{border-radius:999px}

/* ---------- series (KDP-style) ---------- */
.sr-badge{display:inline-flex;align-items:center;gap:7px;padding:6px 13px;border-radius:999px;background:rgba(124,58,237,.1);border:1px solid rgba(124,58,237,.22);color:var(--violet);font:600 12.5px/1 var(--font-display);letter-spacing:-.005em;text-decoration:none;transition:background .2s,transform .2s var(--ease-out)}
.sr-badge:hover{background:rgba(124,58,237,.17);transform:translateY(-1px)}
.sr-badge b{font-weight:700}
.st-ser{font:600 11.5px/1.3 var(--font-display);color:var(--violet);letter-spacing:.005em;margin-top:1px}
.sr-pills{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;margin:0 0 14px;align-items:center}.sr-pills::-webkit-scrollbar{display:none}
.sr-pills>span{flex:0 0 auto;font:700 11.5px var(--font-display);letter-spacing:.06em;text-transform:uppercase;color:var(--text-dim)}
.sr-pills a{flex:0 0 auto;padding:7px 14px;border-radius:999px;background:rgba(124,58,237,.09);border:1px solid rgba(124,58,237,.2);color:var(--violet);font:600 13px var(--font-display);text-decoration:none;white-space:nowrap;transition:transform .2s var(--ease-out),background .2s}
.sr-pills a:hover{background:rgba(124,58,237,.16);transform:translateY(-1px)}.sr-pills a small{opacity:.7;margin-left:4px}
.sr-sec{margin:26px 0 4px}.sr-sec h2{margin:0 0 2px;font-size:20px}.sr-sec p{margin:0 0 10px;color:var(--text-dim);font-size:13.5px}
.sr-strip{display:flex;gap:14px;overflow-x:auto;padding:6px 4px 16px;scroll-snap-type:x proximity;scrollbar-width:thin}
.sr-item{flex:0 0 138px;scroll-snap-align:start;text-decoration:none;color:inherit;display:block}
.sr-item .im{position:relative;aspect-ratio:3/4;border-radius:14px;overflow:hidden;background:var(--grad-brand-soft);box-shadow:0 16px 30px -20px rgba(76,29,149,.6);transition:transform .28s var(--ease-out),box-shadow .28s}
.sr-item .im img{width:100%;height:100%;object-fit:cover;display:block}.sr-item .im .ph{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:34px;opacity:.5}
.sr-item:hover .im{transform:translateY(-3px);box-shadow:0 24px 36px -22px rgba(124,58,237,.7)}.sr-item:hover .im img{transform:scale(1.04)}
.sr-item .no{position:absolute;left:8px;top:8px;background:rgba(15,10,35,.82);color:#fff;border-radius:999px;padding:3px 9px;font:600 11px var(--font-display)}
.sr-item.cur .im{outline:2.5px solid var(--violet);outline-offset:3px}
.sr-item b{display:block;margin-top:9px;font-size:13.5px;line-height:1.25;font-weight:600}.sr-item small{display:block;color:var(--text-dim);font-size:12px;margin-top:2px}
.sr-hero{border-radius:24px;padding:26px 22px;margin:8px 0 18px;background:var(--grad-brand-soft);position:relative;overflow:hidden}
.sr-hero .k{font:700 11.5px var(--font-display);letter-spacing:.08em;text-transform:uppercase;color:var(--violet)}
.sr-hero h1{margin:6px 0 6px;font-size:clamp(26px,5.5vw,40px)}.sr-hero p{margin:0;color:var(--text-dim);font-size:15px}
.sr-hero .cov{display:flex;margin-top:16px}.sr-hero .cov img{width:56px;height:76px;object-fit:cover;border-radius:10px;border:2px solid var(--surface-solid);box-shadow:0 10px 20px -10px rgba(0,0,0,.45);margin-left:-14px}.sr-hero .cov img:first-child{margin-left:0}
.st-thumb .no{position:absolute;left:8px;bottom:8px;background:rgba(15,10,35,.82);color:#fff;border-radius:999px;padding:3px 10px;font:600 11px var(--font-display)}

/* ---------- covers: show the WHOLE cover. Amazon / KDP covers are ~2:3 — never crop them ---------- */
.st-thumb:not(.sq):not(.wide){aspect-ratio:2/3;background:linear-gradient(160deg,#f5f1ff,#fdf2f8)}
.st-thumb:not(.sq):not(.wide) img{object-fit:contain}
.bk-cover{aspect-ratio:2/3;background:linear-gradient(160deg,#f5f1ff,#fdf2f8)}
.bk-cover img{object-fit:contain}
.bk-thumbs img{width:62px;height:92px;object-fit:contain;background:#f5f1ff}
.sr-item .im{aspect-ratio:2/3;background:linear-gradient(160deg,#f5f1ff,#fdf2f8)}
.sr-item .im img{object-fit:contain}
.sr-hero .cov img{width:58px;height:87px;object-fit:contain;background:#fff}
.ck-line img{width:56px;height:84px;object-fit:contain;background:#f5f1ff}
@media(max-width:520px){.ck-line img{width:50px;height:75px}}

/* ---------- long-form reading: description, notes, about ---------- */
.bk-desc,.desc{font-weight:480;font-size:16.5px;line-height:1.78;letter-spacing:-.003em;color:var(--text);hyphens:manual;overflow-wrap:anywhere}
.bk-desc.glass{max-width:880px}
.bk-desc>*,.desc>*{max-width:68ch}
.bk-desc p,.desc p{margin:0 0 1.1em}
.bk-desc h2,.bk-desc h3,.bk-desc h4,.desc h2,.desc h3,.desc h4{font-family:var(--font-title);font-weight:700;letter-spacing:-.02em;line-height:1.25;color:var(--text);margin:1.7em 0 .6em;text-wrap:balance}
.bk-desc h3,.desc h3{font-size:1.2em}.bk-desc h2,.desc h2{font-size:1.4em}
.bk-desc>h3:first-child,.desc>h3:first-child{margin-top:0}
.bk-desc strong,.desc strong,.bk-desc b,.desc b{font-weight:700;color:var(--text)}
.bk-desc ul,.desc ul{list-style:none;padding:0;margin:0 0 1.3em}
.bk-desc ul li,.desc ul li{position:relative;padding:5px 0 5px 28px}
.bk-desc ul li::before,.desc ul li::before{content:"";position:absolute;left:5px;top:1em;width:8px;height:8px;border-radius:50%;background:linear-gradient(135deg,#7c3aed,#ec4899)}
.bk-desc ol,.desc ol{padding-left:24px;margin:0 0 1.3em}.bk-desc ol li,.desc ol li{padding:4px 0}
.bk-desc a,.desc a{color:var(--violet);font-weight:600;text-underline-offset:3px}
@media(max-width:640px){.bk-desc,.desc{font-size:16px;line-height:1.72}.bk-desc.glass{padding:18px 16px!important}}